Does Order of Application of Emollient and Topical Corticosteroids Make a Difference in the Severity of Atopic Eczema in Children?

Topical steroids or emollients: does order matter?

Topical corticosteroids, topical steroid-sparing agents, and emollients are all used to treat atopic dermatitis. However, there are no formal guidelines dictating the order and timing in which these topical modalities should be applied. Additionally, the order of application may change drug absorption, efficacy, and distribution. This is especially important for patients with atopic dermatitis. These patients have a dysfunctional skin barrier, which can lead to greater systemic absorption of drugs. Moreover, children already have an increased rate of systemic absorption due to a higher ratio of body surface area to body weight. Thus, the order of application of topical regimens is of the utmost importance in pediatric dermatology. This manuscript presents an updated review of the literature with a focus on guiding clinicians toward the best practices from the available resources.

Topical Prescription Management

With recent advances in topical therapies for atopic dermatitis (AD), steroid-sparing options like calcineurin inhibitors, Janus kinase (JAK) inhibitors, and phosphodiesterase-4 (PDE-4) inhibitors are becoming mainstays in therapy, underscoring the importance of careful selection and usage of topical corticosteroids (TCSs) to minimize side effects. Alongside the necessity of emollient use, these steroid-sparing alternatives offer rapid itch relief and efficacy in improving disease severity. While TCSs still hold a prominent role in AD management, promising novel topical treatments like tapinarof and live biotherapeutics to modulate the skin microbiome are also discussed. Overall, the recent addition of novel topical therapies offers diverse options for AD management and underscores the importance of topical treatments in the management of AD.

Comparison of lotions, creams, gels and ointments for the treatment of childhood eczema: the BEE RCT

Background

Emollients are recommended for children with eczema (atopic eczema/dermatitis). A lack of head-to-head comparisons of the effectiveness and acceptability of the different types of emollients has resulted in a 'trial and error' approach to prescribing.

Objective

To compare the effectiveness and acceptability of four commonly used types of emollients for the treatment of childhood eczema.

Design

Four group, parallel, individually randomised, superiority randomised clinical trials with a nested qualitative study, completed in 2021. A purposeful sample of parents/children was interviewed at ≈ 4 and ≈ 16 weeks.

Setting

Primary care (78 general practitioner surgeries) in England.

Participants

Children aged between 6 months and 12 years with eczema, of at least mild severity, and with no known sensitivity to the study emollients or their constituents.

Interventions

Study emollients sharing the same characteristics in the four types of lotion, cream, gel or ointment, alongside usual care, and allocated using a web-based randomisation system. Participants were unmasked and the researcher assessing the Eczema Area Severity Index scores was masked.

Main outcome measures

The primary outcome was Patient-Oriented Eczema Measure scores over 16 weeks. The secondary outcomes were Patient-Oriented Eczema Measure scores over 52 weeks, Eczema Area Severity Index score at 16 weeks, quality of life (Atopic Dermatitis Quality of Life, Child Health Utility-9 Dimensions and EuroQol-5 Dimensions, five-level version, scores), Dermatitis Family Impact and satisfaction levels at 16 weeks.

Results

A total of 550 children were randomised to receive lotion (analysed for primary outcome 131/allocated 137), cream (137/140), gel (130/135) or ointment (126/138). At baseline, 86.0% of participants were white and 46.4% were female. The median (interquartile range) age was 4 (2-8) years and the median Patient-Oriented Eczema Measure score was 9.3 (SD 5.5). There was no evidence of a difference in mean Patient-Oriented Eczema Measure scores over the first 16 weeks between emollient types (global p = 0.765): adjusted Patient-Oriented Eczema Measure pairwise differences - cream-lotion 0.42 (95% confidence interval -0.48 to 1.32), gel-lotion 0.17 (95% confidence interval -0.75 to 1.09), ointment-lotion -0.01 (95% confidence interval -0.93 to 0.91), gel-cream -0.25 (95% confidence interval -1.15 to 0.65), ointment-cream -0.43 (95% confidence interval -1.34 to 0.48) and ointment-gel -0.18 (95% confidence interval -1.11 to 0.75). There was no effect modification by parent expectation, age, disease severity or the application of UK diagnostic criteria, and no differences between groups in any of the secondary outcomes. Median weekly use of allocated emollient, non-allocated emollient and topical corticosteroids was similar across groups. Overall satisfaction was highest for lotions and gels. There was no difference in the number of adverse reactions and there were no significant adverse events. In the nested qualitative study (n = 44 parents, n = 25 children), opinions about the acceptability of creams and ointments varied most, yet problems with all types were reported. Effectiveness may be favoured over acceptability. Parents preferred pumps and bottles over tubs and reported improved knowledge about, and use of, emollients as a result of taking part in the trial.

Limitations

Parents and clinicians were unmasked to allocation. The findings may not apply to non-study emollients of the same type or to children from more ethnically diverse backgrounds.

Conclusions

The four emollient types were equally effective. Satisfaction with the same emollient types varies, with different parents/children favouring different ones. Users need to be able to choose from a range of emollient types to find one that suits them.

Future work

Future work could focus on how best to support shared decision-making of different emollient types and evaluations of other paraffin-based, non-paraffin and 'novel' emollients.

Trial registration

This trial is registered as ISRCTN84540529 and EudraCT 2017-000688-34.

Funding

This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme (HTA 15/130/07) and will be published in full in Health Technology Assessment; Vol. 27, No. 19. See the NIHR Journals Library website for further project information.

Treatment options for moderate to severe atopic dermatitis

Background: The treatment of chronic refractory moderate-to-severe atopic dermatitis (AD) has traditionally relied on broad-spectrum systemic anti-inflammatory agents. With the introduction of biologics and Janus kinase inhibitors (Jakinib), the step management of moderate-to-severe AD is rapidly changing; however, guidelines have yet to provide formal recommendations for how to best incorporate these agents into the treatment plan. Objective: To summarize the updated evidence-based medical treatment for AD, including a proposed position for biologics and Jakinibs in the treatment algorithm. Methods: A literature search of several medical literature data bases for guidelines, position papers, systematic reviews, and clinical trials from 2012 to 2022 on the treatment of moderate-to-severe AD was conducted to prepare this narrative review. Results: Emollients and topical corticosteroids are the mainstay for treating acute flares and for maintaining chronic control. Second-line topical agents include calcineurin inhibitors, e.g., tacrolimus and pimecrolimus; crisaborole; and ruxolitinib. For acute flares, cyclosporine is preferred over systemic corticosteroids. For chronic treatment, phototherapy should be considered before systemic anti-inflammatory agents. Of the traditional anti-inflammatory agents, cyclosporine is the first-line choice, with methotrexate and azathioprine equal secondary choices. Although abrocitinib may have better efficacy then dupilumab based on indirect comparisons, abrocitinib requires closer monitoring for adverse events. Based on package labeling, Jakinibs, e.g., abrocitinib and upadacitinib, should be used only after failure with other systemic agents, including biologics (e.g., dupilumab and tralokinumab). Biologics and Jakinibs should be considered before the traditional systemic anti-inflammatory agents. Conclusion: Clinicians should consider a modified step management for AD as they await the development of national and international guideline recommendations for how best to position the biologics and Jakinibs into the AD treatment algorithm.

Use of Dexpanthenol for Atopic Dermatitis-Benefits and Recommendations Based on Current Evidence

BACKGROUND

Atopic dermatitis (AD) is an inflammatory skin disease of multiple phenotypes and endotypes, and is highly prevalent in children. Many people of all ages, including active adolescents, pregnant women, and the elderly, suffer from AD, experiencing chronicity, flares, and unexpected relapse. Dexpanthenol has multiple pharmacological effects and has been employed to treat various skin disorders such as AD. We aimed to summarize the up-to-date evidence relating to dexpanthenol and to provide a consensus on how to use dexpanthenol effectively for the treatment of AD.

METHODS

The evidence to date on the application and efficacy of dexpanthenol in AD was reviewed. The literature search focused on dexpanthenol use and the improvement of skin barrier function, the prevention of acute flares, and its topical corticosteroid (TCS) sparing effects. Evidence and recommendations for special groups such as pregnant women, and the effects of dexpanthenol and emollient plus in maintenance therapy, were also summarized.

RESULTS

Dexpanthenol is effective and well-tolerated for the treatment of AD. Dexpanthenol improves skin barrier function, reduces acute and frequent flares, has a significant TCS sparing effect, and enhances wound healing for skin lesions.

CONCLUSION

This review article provides helpful advice for clinicians and patients on the proper maintenance treatment of AD. Dexpanthenol, as an active ingredient in ointments or emollients, is suitable for the treatment and maintenance of AD. This paper will guide dermatologists and clinicians to consider dexpanthenol as a treatment option for mild to moderate AD.

Optimizing topical management of atopic dermatitis

OBJECTIVE

Provide a review of atopic dermatitis management, focusing on optimizing topical therapy, creating a stepwise approach for treatment plans, and providing guidance on when to start systemic therapy.

DATA SOURCES

PubMed search of articles in the English language regarding atopic dermatitis in all ages.

STUDY SELECTION

Articles on the subject matter were selected and reviewed.

RESULTS

Topical corticosteroids are the first-line treatment for managing atopic dermatitis. Topical nonsteroidal agents, calcineurin inhibitors, crisaborole, and recently, ruxolitinib, which cause no cutaneous atrophy, are options for reducing the use of topical corticosteroids, including on sensitive sites. Emerging topical agents are in clinical trials. Proactive management, with continued application 2 to 3 times weekly of a midpotency topical corticosteroid or tacrolimus, may maintain control for clear (or almost clear) localized sites of dermatitis that rapidly recur when topical anti-inflammatory medication is stopped. If topical therapy alone cannot control disease and quality of life is impacted, reevaluation to confirm the diagnosis, manage comorbid conditions, address compliance and patient-specific concerns, and optimize topical therapy must be undertaken before deciding to advance to systemic medication. Dupilumab, an interleukin-4 receptor inhibitor, has become first-line systemic therapy given its efficacy and safety, allowing long-term treatment without laboratory monitoring. Other biologics and Janus kinase inhibitors are emerging as alternatives that could eliminate the need for immunosuppressants with their higher risks.

CONCLUSION

Several options are now available for topical treatment. A stepwise approach is needed to consider alternative therapies and diagnoses before advancing to systemic treatment, but the safety of newer immunomodulators will lower the threshold for more aggressive intervention.

Pearls in Mitigating Application Pain of Topical Nonsteroidal Agents

BACKGROUND

Topical steroid-sparing agents (SSA), such as tacrolimus, pimecrolimus, and crisaborole, represent an important therapeutic option in the treatment of inflammatory dermatoses such as atopic dermatitis. While these agents lack the common side effects associated with topical corticosteroids, they all share application site pain as an important adverse effect.

SUMMARY

Based on the available evidence and our experience, we suggest the following 7 practical strategies for decreasing the pain associated with SSA use. (1) Use a topical corticosteroid for a few days to reduce inflammation before starting the SSA treatment. (2) Use SSAs strategically. (3) Apply moisturizer before applying SSAs. (4) Store moisturizers in the refrigerator. (5) Ask the patient to apply the SSA on a small test area before broader application. (6) Apply the SSA on dry rather than on damp skin. (7) Consider using aspirin when appropriate for the patient.

A Systematic Scoping Literature Review of Publications Supporting Treatment Guidelines for Pediatric Atopic Dermatitis in Contrast to Clinical Practice Patterns

INTRODUCTION

Treatment guidelines endorse a variety of strategies for atopic dermatitis (AD) which may vary from published data and clinical practice patterns. The objective of this review was to quantify the volume of available medical literature supporting pediatric AD treatments and compare these patterns to those recommended by published guidelines and/or clinical practice patterns.

METHODS

Searches of Embase (2005-2016) and abstracts from selected meetings (2014-2016) related to AD treatment in patients younger than 17 years of age yielded references that were assessed by study design, primary treatment, age groups, and AD severity.

RESULTS

Published literature partially supports clinical guidelines, with emollients and topical medications being the most investigated. There were disproportionately more publications for topical calcineurin inhibitors (TCI) compared with topical corticosteroids (TCS); however, the search interval may have biased the results toward treatments approved near the beginning of the time frame. In contrast, publications documenting clinical practice patterns reflect greater use of emollients and TCS (over TCI), as well as systemic corticosteroids. Data is relatively limited for long-term and combination treatment, treatment of severe AD, and patients younger than 2 years of age, and completely lacking for systemic corticosteroids.

CONCLUSION

This scoping review demonstrates that available medical literature largely supports published guidelines for topical therapy; however, clinical practice patterns are less aligned. There is a lack of data for older, more frequently used generic treatments, including oral antihistamines, oral antibiotics, and systemic corticosteroids. Overall, literature is lacking for long-term treatment, treatment for patients younger than 2 years of age, and for systemic treatment for severe disease.

FUNDING

Regeneron Pharmaceuticals Inc.

Computational design of treatment strategies for proactive therapy on atopic dermatitis using optimal control theory

Atopic dermatitis (AD) is a common chronic skin disease characterized by recurrent skin inflammation and a weak skin barrier, and is known to be a precursor to other allergic diseases such as asthma. AD affects up to 25% of children worldwide and the incidence continues to rise. There is still uncertainty about the optimal treatment strategy in terms of choice of treatment, potency, duration and frequency. This study aims to develop a computational method to design optimal treatment strategies for the clinically recommended 'proactive therapy' for AD. Proactive therapy aims to prevent recurrent flares once the disease has been brought under initial control. Typically, this is done by using an anti-inflammatory treatment such as a potent topical corticosteroid intensively for a few weeks to 'get control', followed by intermittent weekly treatment to suppress subclinical inflammation to 'keep control'. Using a hybrid mathematical model of AD pathogenesis that we recently proposed, we computationally derived the optimal treatment strategies for individual virtual patient cohorts, by recursively solving optimal control problems using a differential evolution algorithm. Our simulation results suggest that such an approach can inform the design of optimal individualized treatment schedules that include application of topical corticosteroids and emollients, based on the disease status of patients observed on their weekly hospital visits. We demonstrate the potential and the gaps of our approach to be applied to clinical settings.This article is part of the themed issue 'Mathematical methods in medicine: neuroscience, cardiology and pathology'.